Due to his partnership with Graham's Shipping and Trading Company, Poonja moved to Karachi, where its headquarters operated.

[6] Poonja rented the Wazir Mansion for his family, and this is where his children, most notably Muhammad Ali Jinnah was born.

His flair for business and hard work soon helped him to make sufficient profits, enabling him to add substantially to the original capital.

When he returned from Gondal to Paneli after some months, his father was happy to find that his son had made good in a big city.

In 1886, Poonja got his son Mahomedali admitted into the Sindh Madrasa, before also having him attend the Anjuman-e-Islam School in Bombay.

[2] Poonja eventually sent Mahomedali to England after getting offered an apprenticeship by Sir Frederick Leigh Croft to work for his firm, Graham's Shipping and Trading Company.

[7] It was needed for Mahomedali to go to England because there was a legal proceeding against Poonja, which placed the family's property at risk of being sequestered.